How many oxygen sensors are on a 2001 Dodge Durango with 5 point 9 liter engine and where they located?

A 2001 Dodge Durango with a 5.9L engine typically has four oxygen sensors. Their exact location can vary slightly depending on the specific exhaust manifold and catalytic converter configuration, but generally:

* Two upstream: Located before the catalytic converter(s), one for each exhaust bank (left and right sides of the engine).

* Two downstream: Located after the catalytic converter(s), one for each exhaust bank.

To be absolutely certain, consult a repair manual specific to your year and model Durango. A diagram in the manual will show the precise location of each sensor. You can often find these manuals online or at auto parts stores.